How Often Should You Replace Your AC in Texas?
How long AC systems last in North Texas — and the signs it's time to replace.
Most central AC systems last about 10–15 years, but in Texas they often land on the shorter end of that range because they run so many hours through our long, hot summers. If your system is over 12–15 years old, needs frequent repairs, or uses old R-22 refrigerant, replacement is usually the smarter long-term choice.
Signs it's time to replace your AC
- The system is 12–15+ years old
- Rising energy bills with no other explanation
- Frequent or expensive repairs
- Uneven cooling or rooms that never get comfortable
- It uses discontinued R-22 (Freon) refrigerant
- Excess humidity, noise or constant running
Why Texas AC systems wear out faster
North Texas summers run hot from May into October, so a system here logs far more runtime than the same unit in a milder climate. That heavy duty cycle, plus hard starts in extreme heat, means many DFW systems show their age closer to 10–12 years than 15. Regular maintenance, clean filters and correct sizing all help, but physics eventually wins.
Getting the most life from your system
Change filters regularly, keep the outdoor coil clear, get an annual tune-up, and make sure the system is correctly sized — an oversized unit short-cycles and wears out sooner. When it is time, see typical pricing in our AC replacement cost guide or our HVAC service.
How Often Should You Replace Your AC in Texas? — frequently asked questions
Homeowner guides: prefer to tackle it yourself first? Our free guides cover an AC that won't cool, changing your air filter, and how long an AC lasts — or browse all HVAC guides.
Wondering if it's time to replace your AC?
We'll evaluate your system honestly and give you a free, no-obligation estimate if replacement makes sense. Serving Dallas–Fort Worth & North Texas for over 25 years.